I'm running v2.6.4 of the gem, and the code here determines if each cert is a path or inline certificate by checking if the string starts with a /. This is fine for Linux, but on my Windows box with Ruby 2.3.1 (provided in the Chef DK), that list of certs is:
Well this fixes an issue for a new feature, so that new feature will just be broken for Windows users until a new release is available on rubygems. So it's not urgent, but I'm not opposed to a release as soon as possible. 😉 I'm not pulling pre-releases though, so whenever you can get a 2.6.5 version out, I'll be able to use it.